316 
Geological Society. 
little chapter, except to illustrate what (at pp. 178, 179) he warns 
Eozoonal and other naturalists to avoid, namely, time-wasting and 
immature talk, in which words take the place of ideas. 
Plates xxiii. to xxxiv. inclusive contain carefully drawn 
figures (coloured) of preparations of the Eozoonal ophitic marble, 
as thin slices, as etched surfaces, and as separated particles, com¬ 
municated by Drs. Carpenter and Dawson. 
Plates xxxv. to xl. inclusive (excepting one figure) contain 
enlarged sections of the shell-structure of Polytrema miniaceum , 
Cycloclypeus , Nummidina, Calcarina Spengleri, Tinoporus baculatus, 
Orbitoides papyracea, Polystomella, and Carpenteria rhaphidoden- 
dron. All (except one) of these drawings have been made by the 
Author himself. 
In none of the preparations of known recent and fossil Foramini- 
fera here figured does Prof. Mobius see any thing more than a very 
distant resemblance to Eozoonal structure, which latter, as before 
said, he regards as inorganic. 
This memoir is a handy resume of the objections made by anti- 
eozoonists to the presumed organic origin of the object under notice; 
and the plates brought together by Prof. Mobius, with no little 
labour and skill, are useful as a compendious set of sectional figures 
of Eozoon and many of its more modern relations ; and though he 
fails to see their alliance, close as the analogies may be, yet his 
work is highly useful and praiseworthy; it is disinterested, straight¬ 
forward, and conscientiously offered for the advancement of true 
knowledge. T. It. J. 
PROCEEDINGS OF LEARNED SOCIETIES. 
GEOLOGICAL SOCIETY. 
February 21, 1879.—Henry Clifton Sorby, Esq., F.R.S., 
President, in the Chair. 
The following communications were read :— 
1. “ Note on Poilcilopleuron Buclclandi , of Eudes Deslongchamps 
(pere), identifying it with Megalosaurus Buclclandi .” Ry J. W. 
Hulke, Esq., F.R.S., F.G.S. 
The author stated that the genus Poilcilopleuron was founded by 
Deslongchamps, after much hesitation, to receive some Megalo- 
sauroid fossils found in a quarry near Caen, and that he gave them 
the specific name “ Buclclandi” with the view of facilitating the 
union of the two genera, should this be found necessary. The 
author reviewed the evidence on Avhich the genus Poilcilopleuron 
rests, indicating the close resemblance of the remains to those of 
Megalosaurus, and showing that a medullary cavity exists in the 
vertebrae of the latter, thxis getting rid of the most important diffe¬ 
rence between the two supposed genera. The author’s conclusion 
was that Poilcilopleuron and Megalosaurus Buclclandi, Avere identical. 
